Effects of smoking intensity trajectory, cumulative smoking exposure, and the number of years since quitting on the subsequent risk of hypertension

Association between waist circumference change after smoking cessation and incidence of hypertension in Korean adults

OBJECTIVES

This study investigates the association between smoking cessation and hypertension incidence, as well as the association between waist circumference change after smoking cessation and hypertension incidence.

STUDY DESIGN

This was a nationwide population-based cohort study.

METHODS

We used the Korean Health Screening Cohort data and included 158,505 participants who had undergone two or more health examinations between 2008 and 2011, with follow-ups throughout 2019. Smoking cessation and waist changes were captured based on difference between first and follow-up screening dates. Hazard ratio (HR) and 95% confidence interval (CI) for hypertension risk were estimated using multivariable Cox proportional hazard regression models.

RESULTS

There were 31,270 cases of hypertension during a median follow-up of 8.50 years. After adjusting for potential confounding factors, HR for hypertension were 1.01 (95% CI: 0.97-1.05), 0.91 (95% CI: 0.87-0.95), and 0.88 (95% CI: 0.85-0.91) for recent quitters, long-term quitters, and non-smokers, respectively, compared with current smokers. HR for hypertension, compared with current smokers, were 0.89 (95% CI: 0.84-0.94), 0.91 (95% CI: 0.85-0.97), and 0.99 (95% CI: 0.91-1.08) for long-term quitters with no waist gain, long-term quitters with waist gain of 0.1-5.0 cm, and long-term quitters with waist gain of ≥5.0 cm, respectively.

CONCLUSIONS

Long-term smoking cessation was significantly associated with decreased risk of hypertension, and long-term smoking cessation with no waist gain or less than 5.0 cm of waist gain was significantly associated with decreased risk of hypertension. However, more than 5.0 cm of waist gain can attenuate the effect of long-term smoking cessation on lowering the risk of hypertension.

Sex differences in cardiovascular risk factors and quality of life among individuals with hypertension in Korea from 2013 to 2018: A cross-sectional cohort study

As its prevalence increases and its association with cardiovascular disease and mortality is established, there is a need to improve prevention and management strategies for hypertension. Therefore, we aimed to compare differences in cardiovascular health status between men and women with hypertension defined by systolic blood pressure ≥140 mmHg and diastolic blood pressure ≥90 mmHg, and/or treatment with antihypertensive drugs. The association between cardiovascular health status and health-related quality of life was also evaluated. Additionally, a secondary analysis was performed on the cross-sectional data from 7306 adults with hypertension, ≥40 years of age between 2013 and 2018. Of this sample, 51.2% of patients were women from the Korean National Health and Nutrition Examination Survey. The seven Cardiovascular Health Metrics were used to quantify cardiovascular health status and the 5-dimensional European Quality of Life Questionnaire (EQ-5D) was used to evaluate health-related quality of life. A higher proportion of men than that of women was observed in the poor cardiovascular health score group [total score 0-7], with a higher proportion of women in the intermediate group [total score 8-10] and ideal group [total 11-14] (p<0.0001). The proportion of women in the EQ-5D index was higher than that of men in the poor and intermediate groups (p<0.0001), with no difference in the proportion of men and women in the ideal group (p = 0.1452). Furthermore, specific cardiovascular risk factors were different between men and women: women had lower physical activity level and higher prevalence of high cholesterol (≥200 mg/dl), and men had higher body mass indices and worse diet management. These findings indicate that prevention and management strategies for hypertension and cardiovascular health might need to differ for men and women to improve outcomes.

Associations of genetic variations in the M3 receptor with salt sensitivity, longitudinal changes in blood pressure and the incidence of hypertension in Chinese adults

Recent studies have reported the role of the M3 muscarinic acetylcholine receptor (M3R), a member of the G-protein coupled receptor superfamily, encoded by the CHRM3 gene, in cardiac function and the regulation of blood pressure (BP). The aim of this study was to investigate the associations of CHRM3 genetic variants with salt sensitivity, longitudinal BP changes, and the development of hypertension in a Chinese population. We conducted a chronic dietary salt intervention experiment in a previously established Chinese cohort to analyze salt sensitivity of BP. Additionally, a 14-year follow-up was conducted on all participants in the cohort to evaluate the associations of CHRM3 polymorphisms with longitudinal BP changes, as well as the incidence of hypertension. The single nucleotide polymorphism (SNP) rs10802811 within the CHRM3 gene displayed significant associations with low salt-induced changes in systolic blood pressure (SBP), diastolic blood pressure (DBP), and mean arterial pressure (MAP), while rs373288072, rs114677844, and rs663148 exhibited significant associations with SBP and MAP responses to a high-salt diet. Furthermore, the SNP rs58359377 was associated with changes in SBP and pulse pressure (PP) over the course of 14 years. Additionally, the 14-year follow-up revealed a significant association between the rs619288 polymorphism and an increased risk of hypertension (OR = 1.74, 95% CI: 1.06-2.87, p = .029). This study provides evidence that CHRM3 may have a role in salt sensitivity, BP progression, and the development of hypertension.

Prevalence of Hypertension and Associated Factors among Residents Aged ≥18 Years in Ganzhou, China: A Cross-Sectional Study

Background

Reliable epidemiologic data on the present burden of hypertension are needed in developing region-specific strategies since previous studies have suggested that China is lagging in risk factor management.

Objective

The study aimed at exploring the prevalence of hypertension and its associated factors among adult residents in Ganzhou, China. Methodology. A multistage, stratified, and cluster random sampling method was used to conduct the cross-sectional survey. The study selected four county-level districts in Ganzhou City, China, as the investigation area. Permanent residents aged ≥18 years who have settled in the area for 6 months or more were selected. A total of 7430 residents were involved in the study. Univariate and multivariate logistic regression analysis was carried out to identify predictors of hypertension.

Results

The prevalence of hypertension in Ganzhou was 28.5%, and the age-standardized prevalence of hypertension was 22.4%. Univariate logistic regression analysis revealed that multiple variables have a statistically significant effect on the prevalence of hypertension. The elderly (odds ratio [95% CI]: 2.791 [2.594-3.004]), men (1.805 [1.583-2.058]), lower educated (0.848 [0.805-0.893]), a family history of hypertension (4.575 [3.900-5.368]), higher body mass index (1.344 [1.215-1.488]), central obesity (1.532 [1.304-1.799]), and less vegetable intake (1.150 [1.023-1.294]) were the major risk factors for hypertension.

Conclusion

Hypertension is a major public health problem in Ganzhou and requires much effort to reduce its prevalence. An effective multifaceted implementation strategy is highly desirable to combat the emerging burden of hypertension.

Sex-specific differences in the association between metabolically healthy overweight/obesity and the risk of hypertension in Chinese ethnic minorities

OBJECTIVE

To estimate and compare sex-specific differences between metabolically healthy overweight/obesity (MHOO) and the risk of hypertension among Dong, Bouyei, and Miao adults in southwest China.

METHODS

MHOO was diagnosed when the patient had a body mass index ≥24 kg/m² and the presence of ≤1 component of metabolic syndrome. The main outcome was the occurrence of hypertension after the diagnosis or measurement by a physician at the baseline survey. Multivariate logistic regression models were used to estimate odds ratios (ORs) and 95% confidence intervals (CIs) between MHOO and the risk of hypertension.

RESULTS

We enrolled 16,433 Chinese Dong, Bouyei, and Miao adults. Using the metabolically healthy normal weight (MHNW) as a reference and after adjusting for confounders, the association between MHOO and the risk of hypertension was stronger in Dong (OR = 1.46, 95% CI: 1.07-2.00) and Miao (OR = 2.05, 95% CI: 1.48-2.85) men and did not exist in Bouyei men (OR = 1.14, 95% CI: 0.81-1.60). After adjusting for the age, the association between MHOO and the risk of hypertension was stronger in men than in women among Dong adults aged 30-59 years (OR = 1.64, 95% CI: 1.12-2.40) and did not differ between men and women among Dong adults aged 60-79 years or among Miao or Bouyei adults.

CONCLUSION

The results of this study demonstrated sex-specific differences in the association between MHOO and the risk of hypertension and that sex-specific differences further differed among Dong, Bouyei, and Miao adults.